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Everything posted by swampdonkeykami
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FAAAAACK! Gotta sooper sleuth the Gee Dee passive values. Seriously, it doesn't cost a thing to have them in the schematic.
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I'm putting this together now. BOM is horrible. What values are ALL the resistors? P.S. Why, why why SMT? PITA, no?
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Got an interesting problem with my second kit. Turn on. No display. randomly mash buttons. displays 0000000 for split second, then blank. Check power and pin voltages... 1- 3V 2-7 1.3V 8-13 0.3V 14-15 1.3V 16 3V 17-18 0V 19 0.3V 20 0V I assume I did something wrong like insert LEDs wrong way. Start cutting leads off (hate de-soldering) Bingo. LEDs light up missing a couple segments. LED installed correctly. Faulty/fried bubble module?
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I'm in for a deluxe version. Let me know where to send da moneys.
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CHEAP air cylinder positioning with 43oh and flow meter
swampdonkeykami replied to swampdonkeykami's topic in Projects
*thinking* or we could install a pressure transducer and have the 43oh calculate the volume of air @ X pressure and base all movements on that baseline pressure, then don't need any fancy geometry algorithms for axies! THANKS FOR THE INSPIRATION GUYS!!!!! -
CHEAP air cylinder positioning with 43oh and flow meter
swampdonkeykami replied to swampdonkeykami's topic in Projects
Glad you like! More fun in the works! No, this came out of a gold mining machine. I'm re-purposing for something completely useless. ;-) As for varying loads, yes and no. If you are talking lifts various weight of items, shouldn't make a difference because the cylinder volume is constant. You put in 3 litres of compressed air @ 30psi, the cylinder moves 500mm. You put in 3 litres of compressed air @ 200psi, the cylinder moves 500mm. The trick is, the 43oh needs to return to a known position (full retract, full extend, or limit switch) prior to changing the load. But if the load v -
CHEAP air cylinder positioning with 43oh and flow meter
swampdonkeykami replied to swampdonkeykami's topic in Projects
Now that we know it works, I'm bustin' out more cylinders and joystick controls! :thumbup: -
Hi Guys! I've been toying with an idea, that I didn't think would work, and set up a test jig. Using an air compressor, a solenoid valve, a flow meter and a 43oh I found that we can get a repeatable cylinder position, like +-2.5 mm! The flow meter is measuring the volume of air that we've fed to the cylinder and the 43oh opens or closes a solenoid valve depending on the cylinder position.http://arduinoforgoodnotevil.blogspot.ca/2013/10/accurate-ish-pneumatic-cylinder.html
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Long story short: sometimes it works and sometimes it don't. I've read through every post related to the 43oh serial monitor in Energia. I've tried it on three different computers running XP and Windows 7. I'll get it to work, close the window, upload the sketch again and then the serial monitor won't work. MSP-EXP430G2 Rev 1.4; 2553 chip with RX TX jumpers kriss-crossed. Any body else have same trouble? any suggestions?
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Energia + LaunchPad MSP430G without on-chip UART?
swampdonkeykami replied to swampdonkeykami's topic in Compilers and IDEs
Cool, thanks guys! -
Even more impressive! Thanks for showing us what great projects can be accomplished even without all the tools. Too often people put up false barriers; "I could do that, if only I had a 3D printer. If only I had a CNC mill. If only I could program..." :thumbup: Well done sir!
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Man! You must have a lot more patience than I do! When you build V. 2 :thumbup: ; I'll send you some copper coated steel rod. It's filler rod for tig welding, but the copper coating will make it easy to solder/braze.
- 21 replies
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Energia + LaunchPad MSP430G without on-chip UART?
swampdonkeykami replied to swampdonkeykami's topic in Compilers and IDEs
2131 2001 2013 Sometimes, I can get a program to upload even if it's not on the "tools/board:" list by using 2231 (1MHz). Just getting lucky? Nothing to do with UART? Will TI's Code Composer get around this? -
Wah?! That's great, you did a great job getting the wire straightened!
- 21 replies
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Is the structure solid copper or copper plated steel (TIG filler rod)?
- 21 replies
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Jaw dropingly good! You'll be able to get much better torque/power with your new system!
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One of them fancy new fangled magnetostrictive pulse gewgaws? Pricey, no?
- 11 replies
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- hydraulics
- stepper
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(and 2 more)
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